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Coal is the most important fuel used for generating electricity worldwide; however, the process of coal mining involves the release of huge amount of effluent into the surface water. Effluent from coal mine contains high load of TSS, TDS, calcium carbonate and heavy metals, hence contaminates the aquatic regime [ 1, 2, 36, 37 ].
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Therefore, some coal mining enterprises choose to carry out zero discharge treatment of mine water. At present, zero discharge of wastewater is mainly used in thermal power generation industry and coal chemical industry, but the application in coal mining industry is still relatively rare. In this paper, the zero discharge engineering ...
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player of open caste Lignite/ coal, Mining, Power Generation and in renewable energy on PAN India for more than six decades. ... For workshops and CHPs, effluent treatment plants and/or oil & grease traps have been installed. STP facilities are being installed for treatment of domestic effluent. The objective of the Water Quality Management is
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The water network of a coal mine was audited and simulated by an interactive steady state model and the results were used to optimise the mine's water management strategy. Simulation of the interactions showed that calcium carbonate powder could be used as an alternative to lime for neutralization of acid water at a reagent cost saving of 56%. …
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The Coal Mining Effluent Guidelines apply to wastewater discharges from facilities in six subcategories: Coal Preparation Plants and Associated Areas. Acid or Ferruginous Mine Drainage. Alkaline Mine …
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Mine effluent are treated in settling tanks before discharging /re-use which is used in residential colonies, adjoining villages, industrial purposes & irrigation. In OC mines, 123 Effluent treatment plants (ETP) have been commissioned for treatment of effluents. In colonies, 45 Sewage treatment plants (STP) have been commissioned for
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After the end treatment, the pH value of the effluent is around 7.0, the content of Fe and Mn is less than 0.1 mg/L, and the removal rate is above 99%. ... comprehensive treatment technology of source control and end treatment in this project can provide a new method for the treatment of AMD in areas where coal mining is …
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Coal-mine effluent treatment has the potential to both reduce the environmental impact of the effluent and provide economic opportunities by recovering valuable minerals and clean water. In this study, we modeled a novel treatment process, which includes nanofiltration (NF), two-step crystallization, reverse osmosis (RO), …
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Ineffective environmental regulation of effluent discharged from an underground coal mine operation has enabled water pollution within two highly valued Australian rivers. This study investigated the impacts on water chemistry of the Bargo and Nepean rivers as a result of the continuous disposal of mine effluent from Tahmoor …
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Arsenic was found to be significantly reduced with CKD-HDS treatment of Fe/Zn-AMD compared to lime-HDS treatment, to concentrations below the stringent mine effluent discharge regulation of 0.10 ...
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associations all consider the treatment of contaminated mine discharge to be a high priority. However, insufficient funds are available for chemical water treatment, except in a few watersheds of special value. Table 1. Federal Effluent Limits for Coal Mine Drainage Parameter Maximum for Any One Day Average of Daily Values for 30 Consecutive Days
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Wastewater of industrial or commercial origin refers to the discharge of effluents or harmful and non-biodegradable substances from industrial and manufacturing operations, medical centres, and trade processes [22], [23].Examples include sulphur from coal mining (Pudasainee et al., 2020); arsenic, nitrates and phosphates originating from …
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Photocatalytic degradation of , phenol, naphthalene, abamectin, and from coal mining effluent ranged from 8 to 93 % of the initial concentration. Performances of both catalysts were comparable. ... Raw Material in the Catalyst Preparation for Advanced Oxidative Processes Applied in the Industrial Effluent Treatment and from Acid …
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The management and treatment of extremely acidic coal mine drainage (CMD) from Northeastern Coalfield (NEC), Assam, India, remains a perpetual environmental challenge. ... Hence, removal of iron and aluminium occurred as oxides and hydroxides during the initial acclimatization phase and treatment phase V when the …
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Laboratory-scale column tests. The fitness for use of the treated effluent produced is currently being evaluated. At present, large volumes of treated mining-impacted effluent are produced, often with …
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Coal-mine effluent treatment has the potential to both reduce the environmental impact of the effluent and provide economic opportunities by recovering …
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These revised guidelines—originally known as MMER, or metal mining effluent regulations—will affect over 100 metal and diamond mines in Canada. All Canadian metal and diamond mines that discharge effluent—aka liquid waste or sewage discharged by a treatment plant into a river, lake, or the sea—should already know …
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Sustainable wastewater technologies minimize mining's environmental footprint. Mining for some minerals, including coal, has been diminishing globally due to increased financial, social, and environmental pressures, but mining for lithium and other metals — used in electronics and in energy storage — is poised for a transformational decade as …
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Effluent Guidelines are national standards for industrial wastewater discharges to surface waters and publicly owned treatment works (municipal sewage treatment plants). The EPA issues Effluent Guidelines for categories of existing sources and new sources under Title III of the Clean Water Act.The standards are technology …
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Mine Effluent Treatment Needs a Structured Approach Ideally, coal operators should take a structured approach to selecting mine effluent treatment technologies. While equipment vendors are part of this process, their role generally comes more toward the end, when they are asked to provide information on the capabilities of …
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Proposed Approach for Coal Mining Effluent Regulations Proposed Approach for Coal Mining Effluent Regulations . Consultation Document November 2017 . ... treatment plant or from any mine water treatment facility other than liquid discharge from a sewage treatment facility; liquid discharge from a coal-fired power plant that is ...
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quality waste water for disposal. As the spectrum of harmful components vary from mine effluent to mine effluent, and defined discharge requirements by local environmental authorities become even more stringent, an in-depth review of water analysis data and operating conditions must be conducted to determine the appropriate mine water …
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The environmental impact of abandoned mines is a global issue and, with the rise of public awareness and activism, in some cases, this has led to opposition to the development of new resources [4, 37].Previous reviews on select aspects of mine drainage are listed in Table 1.These reviews have considered the mechanisms of production of …
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South Africa's national mineral research organisation, Mintek, highlighted its commitment to protecting South Africa's scarce water resources when it demonstrated its process solutions for the treatment of solid and liquid mine effluent during a technology showcase in Randfontein.. Mintek understands the importance of preventing and …
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The neutral effluent produced by coal mines is a severe threat to the environment if directly disposed into the rivers, because of its high concentration of …
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Coal-mine effluent treatment has the potential to both reduce the environmental impact of the effluent and provide economic opportunities by recovering valuable minerals and …
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Optimizing the Effluent Treatment at a Coal Mine by Process Modelling
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1 S A Coal Estate, P O Box 2851, Witbank, 1035, South Africa Abstract The water network of a coal mine was audited and simulated by an interactive steady state model. The findings from this investigation were used to optimise the mine's wa ter management strategy. Simulation of the interactions in the water network showed that: 1.
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Key words: stream segregation. sulphate removal. water-network simulation. The water network of a coal mine was audited and simulated by an interactive steady state model …
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Treating mine water as a resource is the only way to alleviate water shortage and the environmental pollution issues generated at mining sites in areas of northern and western China. By investigating 77 coal mine water treatment stations in western China, we sought to analyze the application status, direct operating costs, and the challenges of …
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